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Air Filters

K&N Recharger Kit 99-5000EU is designed for cleaning your K&N oiled cotton air filter when it is time to be serviced.
Part 99-5000EU is labeled in English, Spanish, Swedish, Polish and Czech for use in Europe.
The kit comes with K&N Power Kleen air filter cleaner and air filter oil.
99-5000EU will restore air flow efficiency and will bring your K&N oiled cotton air filter to like new condition. K&N Power Kleen works to dissolve the dirt build up and old filter oil, and can be washed away with water. After the air filter fully dries re-oil your air filter then reinstall it.
This Recharger Kit comes with a 204 milliliter aerosol spray can of oil and a 355 milliliter K&N pump bottle of Power Kleen air filter cleaner.
NOTE: This product has got shipping restrictions for export
Please note this item can not be sent out by plane. Deliveries only to European countries by road service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99-5000EU
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Porsche Air Filters | Design911 Performance & Replacement Filters for Clean Engine Breathing
Air filters are essential for your Porsche’s performance, efficiency, and longevity. Designed to remove dust, pollen, and debris from incoming air, they ensure clean airflow to the engine for optimal combustion. A high-quality air filter not only improves power delivery and throttle response but also helps protect internal engine components from premature wear and damage.
At Design911, we supply a full range of air filters for both classic and modern models — including high-performance cotton gauze, pleated paper, and foam filters. Each filter is designed for precision fitment and maximum filtration efficiency. Whether you’re maintaining your daily driver or upgrading your Porsche for motorsport use, our filters deliver clean airflow, long service life, and reliable performance.
What Do Air Filters Do?
Air filters are a vital component of your Porsche’s intake system, providing clean, filtered air for efficient combustion and engine protection.
Core Functions:
• Filter out dust, dirt, and airborne contaminants from intake air.
• Maintain stable air-fuel ratios for smooth combustion.
• Protect pistons, valves, and cylinder walls from abrasive particles.
• Enhance throttle response and engine performance.
• Support optimal fuel economy and reduced emissions.
A well-maintained air filter ensures that your Porsche engine breathes efficiently — delivering consistent performance and reliability.
Why Do Air Filters Fail or Degrade?
Over time, air filters naturally clog with dirt and debris, reducing their ability to allow clean air into the engine.
Common Causes of Failure Include:
• Blockage from dust, pollen, and road debris buildup.
• Moisture or oil contamination in humid or dusty environments.
• Deterioration of filter media from age or heat exposure.
• Restricted airflow reducing performance and efficiency.
• Damage to seals allowing unfiltered air into the intake system.
A dirty or failing air filter can cause poor fuel economy, reduced power, increased emissions, and potential engine wear — making timely replacement essential.
Why Replace or Upgrade Your Porsche Air Filter?
Regular replacement or upgrading to a performance air filter ensures your Porsche continues to perform at its best, with clean, efficient airflow and maximum engine protection.
Key Benefits:
• Restores engine performance and responsiveness.
• Improves fuel efficiency and throttle sensitivity.
• Protects vital engine components from dust and contaminants.
• Available in reusable, high-performance, or replacement-grade options.
• Compatible with Porsche 911, 944, 968, Boxster, Cayman, Panamera, and Macan
models.
• Ideal for regular maintenance, performance upgrades, or restoration projects.
Design911’s Porsche air filters combine engineering precision and superior materials for maximum performance, protection, and reliability on every drive.
Highlights
• Premium Porsche air filters for performance and
protection.
• Available in paper, cotton, and high-flow sport materials.
• Exact-fit replacement for all Porsche models.
• Improves airflow, efficiency, and engine response.
• Perfect for regular servicing, performance tuning, or restoration.
• Resistant to heat, moisture, and environmental contamination.
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